JPS623125Y2 - - Google Patents
Info
- Publication number
- JPS623125Y2 JPS623125Y2 JP1983017476U JP1747683U JPS623125Y2 JP S623125 Y2 JPS623125 Y2 JP S623125Y2 JP 1983017476 U JP1983017476 U JP 1983017476U JP 1747683 U JP1747683 U JP 1747683U JP S623125 Y2 JPS623125 Y2 JP S623125Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- introduction needle
- cannula
- flange portion
- puncture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 210000004204 blood vessel Anatomy 0.000 claims description 10
- 239000008280 blood Substances 0.000 claims description 6
- 210000004369 blood Anatomy 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 210000000709 aorta Anatomy 0.000 description 13
- 238000001356 surgical procedure Methods 0.000 description 10
- 230000004872 arterial blood pressure Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 210000005242 cardiac chamber Anatomy 0.000 description 5
- 210000000115 thoracic cavity Anatomy 0.000 description 5
- 210000001765 aortic valve Anatomy 0.000 description 2
- 208000025339 heart septal defect Diseases 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 210000005240 left ventricle Anatomy 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 206010008088 Cerebral artery embolism Diseases 0.000 description 1
- 206010011084 Coronary artery embolism Diseases 0.000 description 1
- 208000010496 Heart Arrest Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 229940100084 cardioplegia solution Drugs 0.000 description 1
- 230000001101 cardioplegic effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 201000010849 intracranial embolism Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Gastroenterology & Hepatology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- External Artificial Organs (AREA)
Description
【考案の詳細な説明】
本考案は、胸部外科に於て、弁置換、中隔欠損
修復等の開心術を行なう際に使用する大動脈カニ
ユーラ（Kanｕ¨le）に関するものである。[Detailed Description of the Invention] The present invention relates to an aortic cannula used in open heart surgery such as valve replacement and septal defect repair in thoracic surgery.
従来、胸部外科における開心術に於ては、術
中、(i)血液中に混入した気泡により脳栓塞、冠動
脈栓塞などの重篤な合併症を惹起しないよう、エ
アーベント針を使つて心腔内に混入した気泡を除
去したり、(ii)大動脈閉鎖時、心臓停止時に心筋を
保護するため、注入針により心筋保護液等を注入
したり、更に、(iii)心機能状態をモニターするた
め、留置針により動脈圧を測定したりしなければ
ならなかつた。このため動脈の侵襲、切開箇所が
自然と多くなり、その結果抜針後の縫合箇所も多
く、患者に不利であるばかりでなく、その繁雑性
のために、術者の視野を妨げることにもなり、又
余分な操作時間を必要とする欠点があつた。 Conventionally, in open-heart surgery in thoracic surgery, during the operation, (i) an air vent needle was used to insert the needle into the heart chamber to prevent serious complications such as cerebral embolism and coronary artery embolism due to air bubbles mixed into the blood; (ii) to inject cardioplegia fluid etc. with an injection needle to protect the myocardium in the event of aortic closure or cardiac arrest; and (iii) to monitor the cardiac function status. Arterial pressure had to be measured using an indwelling needle. This naturally increases the number of arterial invasions and incisions, and as a result, there are many sutures after the needle is removed, which is not only disadvantageous for the patient, but also obstructs the surgeon's field of view due to its complexity. This also has the disadvantage of requiring extra operating time.
更に通例、叙上のエアーベント針、注入針、留
置針は、いずれもステンレス製の針であるため、
術中該針の先端部により挿入部位以外の部位、例
えば挿入部の反対側の血管壁を損傷しやすい欠点
があつた。 Furthermore, the air vent needles, injection needles, and indwelling needles mentioned above are all made of stainless steel, so
There is a drawback that during the operation, the tip of the needle tends to damage areas other than the insertion site, for example, the blood vessel wall on the opposite side of the insertion site.
従つて本考案の目的は、胸部外科において、弁
置換、中隔欠損修復等の開心術を行なう際、心腔
内の気泡抜き、心筋保護液の注入並びに動脈圧の
測定という多目的に使用できるため、侵襲、切開
箇所が少なく、患者にとつて有利であるばかり
か、余分な回路が一切なくなるため、術者の視野
を拡げることができるとともに、操作が簡単であ
るため操作時間の短縮が図れ術者にとつても好都
合である大動脈カニユーラを提供することにあ
る。 Therefore, the purpose of this invention is that it can be used for multiple purposes in thoracic surgery, such as removing air bubbles from the heart chamber, injecting cardioplegic fluid, and measuring arterial pressure when performing open heart surgery such as valve replacement and septal defect repair. Not only is it advantageous for the patient as it requires fewer invasions and incisions, but it also eliminates any unnecessary circuits, expanding the surgeon's field of view, and is easy to operate, reducing operating time. The object of the present invention is to provide an aortic cannula that is convenient for patients.
本考案の他の目的は、使用時の血管壁の損傷を
必要最少限度にすることが可能な大動脈カニユー
ラを提供することにある。 Another object of the present invention is to provide an aortic cannula that can minimize damage to the blood vessel wall during use.
本考案は次の(a)乃至(d)の要素の組合せから成つ
ている。即ち、(a)管体の長手方向に設けた隔壁に
より形成された２つの管路と、その端面が血管外
壁に当接するフランジ部と、前記フランジ部近傍
に穿設されたサイドホールとを備えて成るカニユ
ーラ本体、(b)その一端部が前記カニユーラ本体の
基端部に挿着され、その他端部が開放されている
可撓性のチユーブ、(c)その先端部が前記カニユー
ラ本体より突出するように、前記カニユーラ本体
及びチユーブに収納された穿刺導入針、(d)前記チ
ユーブと前記穿刺導入針との間より血液が流出す
るのを封止せしめるため、前記穿刺導入針の外側
壁に固設された栓体、の各要素の組合せより成つ
ている。 The present invention consists of a combination of the following elements (a) to (d). That is, (a) it includes two channels formed by partition walls provided in the longitudinal direction of the tube body, a flange portion whose end surface abuts against the outer wall of the blood vessel, and a side hole bored in the vicinity of the flange portion. (b) a flexible tube whose one end is inserted into the proximal end of the cannula body and whose other end is open; (c) whose distal end protrudes from the cannula body; (d) a puncture introduction needle housed in the cannula main body and the tube; It consists of a combination of each element of a fixed stopper.
好ましい実施態様として、上記管路の一方は、
他の管路より大径に形成され、その大径な管路側
に上記サイドホールは穿設され、更に上記穿刺導
入針は、この大径な管路に挿通している。 In a preferred embodiment, one of the conduits is
The pipe is formed to have a larger diameter than other pipes, the side hole is bored on the side of the larger diameter pipe, and the puncture introduction needle is inserted through the larger diameter pipe.
また、上記フランジ部の端面から大径の上記管
路側に形成された上記サイドホールの口部までの
距離と、上記フランジ部の端面から他の上記管路
の先端口までの距離とが略等しく、かつ各距離は
血液壁の肉厚と等しいか、あるいは若干長くとら
れており、術中、血液中に混入した気泡抜きが確
実に行なわれることを保証している。 Further, the distance from the end face of the flange portion to the mouth of the side hole formed on the side of the large-diameter conduit is approximately equal to the distance from the end face of the flange portion to the tip end of the other conduit. , and each distance is equal to or slightly longer than the thickness of the blood wall to ensure that air bubbles mixed in the blood are removed during the surgery.
以下、本考案に係る大動脈カニユーラを添付図
面に示した実施例とともに説明する。 Hereinafter, the aortic cannula according to the present invention will be explained along with embodiments shown in the accompanying drawings.
第１図において、大動脈カニユーラ１は、２つ
の管路を備えたカニユーラ本体１０と、その一端
部が前記カニユーラ本体１０の基端部に挿着固定
されたチユーブ２０と、その大部分が前記カニユ
ーラ本体１０及びチユーブ２０に収納されている
穿刺導入針３０と、前記穿刺導入針３０の外側壁
に固設された栓体４０とより構成されている。 In FIG. 1, an aortic cannula 1 includes a cannula main body 10 having two ducts, a tube 20 whose one end is inserted and fixed to the proximal end of the cannula main body 10, and most of which is connected to the cannula main body 10. It is composed of a puncture introduction needle 30 housed in a main body 10 and a tube 20, and a plug 40 fixed to the outer wall of the puncture introduction needle 30.
このうちカニユーラ本体１０は、ポリ塩化ビニ
ール樹脂等の柔軟な素材を用いて管体に形成さ
れ、この管体の長手方向に設けた隔壁１１により
互いに隔離された左右２つの管路１２（第３図、
第４図参照）、１３を備えている。該管路１２は
管路１３より若干大径に形成されており、前記穿
刺導入針３０は、この大径な管路１２に挿通され
ている。又カニユーラ本体１０の略中央部には、
フランジ部１４が設けられている。このフランジ
部１４は大動脈２に大動脈カニユーラ１を刺した
際、その端面１４ａが血管外壁に当接し、止血部
材として作用する（第２図乃至第４図参照）。こ
のため、該フランジ部１４には第５図、第６図示
の如く、４つのスロツト１４ｂが穿設されてお
り、このスロツト１４ｂを通した糸を大動脈２に
縫い付けることにより大動脈カニユーラ１の固定
が図られる。更にこのフランジ部１４の近傍であ
つて、大径な管路１２側には、主に胸部外科手術
の最後の気泡抜きを円滑にするためサイドホール
１５が穿設されている。この場合、前記フランジ
部１４の前記端面１４ａから、大径の前記管路１
２側に形成された前記サイドホール１５の口部ま
での距離Ｌと、前記フランジ部の端面１４ａか
ら、他の前記管路１３の先端口までの距離Ｍとが
略等しい位置に前記サイドホールは穿設されてお
り、かつ前記距離Ｌ及びＭは、血管壁の肉厚と等
しいか、あるいは若干長くとられている。 Of these, the cannula main body 10 is formed into a tube body using a flexible material such as polyvinyl chloride resin, and has two left and right conduits 12 (a third figure,
(see Fig. 4), 13. The conduit 12 is formed to have a slightly larger diameter than the conduit 13, and the puncture introduction needle 30 is inserted through this large diameter conduit 12. Also, approximately at the center of the cannula body 10,
A flange portion 14 is provided. When the aorta cannula 1 is inserted into the aorta 2, the end surface 14a of the flange portion 14 comes into contact with the outer wall of the blood vessel and acts as a hemostatic member (see FIGS. 2 to 4). For this purpose, the flange portion 14 is provided with four slots 14b as shown in FIGS. 5 and 6, and the aortic cannula 1 is fixed by sewing threads passed through the slots 14b to the aorta 2. is planned. Furthermore, in the vicinity of this flange portion 14 and on the side of the large diameter conduit 12, a side hole 15 is bored mainly to facilitate air bubble removal at the end of thoracic surgery. In this case, from the end surface 14a of the flange portion 14, the large diameter pipe 1
The side hole is located at a position where the distance L to the mouth of the side hole 15 formed on the second side is approximately equal to the distance M from the end surface 14a of the flange portion to the tip end of the other conduit 13. The distances L and M are equal to or slightly longer than the thickness of the blood vessel wall.
カニユーラ本体１０の基端部にその一端部を挿
着固定したチユーブ２０は、薬液（心筋保護液
等）の注入あるいは気泡抜きのため使用されるも
のであり、可撓性の合成樹脂より形成され、その
他端部は開放している。この薬液注入用チユーブ
２０の他端部には、後に詳述する穿刺導入針３０
の端部に付設した摘み３１と係合するコネクタ５
０が固着している。前記摘み３１とコネクタ５０
との係合は、この摘み３１に形成された爪片３２
と、前記コネクタ５０の外側上端より突出した係
合用突起５１（実施例においては２つの突起が設
けられている）を係合させることにより行なわれ
る。 The tube 20, one end of which is inserted and fixed into the proximal end of the cannula body 10, is used for injecting a medical solution (such as a cardioplegia solution) or removing air bubbles, and is made of flexible synthetic resin. , the other end is open. At the other end of this liquid injection tube 20, a puncture introduction needle 30, which will be described in detail later, is provided.
Connector 5 that engages with knob 31 attached to the end of
0 is stuck. The knob 31 and the connector 50
The engagement with the claw piece 32 formed on this knob 31
This is done by engaging the engaging protrusion 51 (two protrusions are provided in the embodiment) protruding from the outer upper end of the connector 50.
穿刺導入針３０はステンレス製であり、その先
端部３０ａは、前記カニユーラ本体１０の大径な
管路１２の先端口より若干突出し、その他の部分
は前記カニユーラ本体１０及びチユーブ２０に収
納されている。このため穿刺導入針３０の先端部
３０ａは、使用前はキヤツプ（図示せず）により
保護されている。 The puncture introduction needle 30 is made of stainless steel, and its tip 30 a slightly protrudes from the tip opening of the large diameter conduit 12 of the cannula main body 10 , and the other parts are housed in the cannula main body 10 and tube 20 . . Therefore, the tip 30a of the puncture introduction needle 30 is protected by a cap (not shown) before use.
又針管３０ｂよりの血液の流出を阻止するため
穿刺導入針の任意の箇所、例えば穿刺導入針３０
の中央部３０ｃを押圧してしぼりを入れ針管３０
ｂは閉じた構成となつている。該穿刺導入針３０
の他端部には前述のように摘み３１が付設されて
おり、使用前においてはこの摘み３１と前記コネ
クタ５０とを係合させることにより穿刺導入針３
０の抜止めが図られている。 In addition, in order to prevent blood from flowing out from the needle tube 30b, the puncture introduction needle may be inserted at any arbitrary point on the puncture introduction needle, for example, the puncture introduction needle 30.
Press the central part 30c of the needle tube 30 to insert the squeezer.
b has a closed configuration. The puncture introduction needle 30
The knob 31 is attached to the other end as described above, and before use, the puncture introduction needle 3 is engaged by engaging the knob 31 with the connector 50.
0 is prevented from coming off.
更に前記穿刺導入針３０の外側壁に固設された
栓体４０は、硬質の合成樹脂より形成されてお
り、前記穿刺導入針３０を血管に刺した後、前記
カニユーラ本体１０及びチユーブ２０より序々に
引抜く際、前記チユーブ２０と前記穿刺導入針３
０との間より血液が吹き出し流出するのを封止し
ている。即ち、前記穿刺導入針３０を前記チユー
ブ２０より引抜く際、前記栓体４０は前記チユー
ブ２０の内側壁面を圧接しながら上昇する。 Furthermore, a stopper 40 fixed to the outer wall of the puncture introduction needle 30 is made of hard synthetic resin, and after the puncture introduction needle 30 is inserted into the blood vessel, it is gradually removed from the cannula main body 10 and the tube 20. When pulling out the tube 20 and the puncture introduction needle 3
This seals off blood from gushing out from the gap between the tube and the tube. That is, when the puncture introduction needle 30 is pulled out from the tube 20, the stopper 40 rises while pressing against the inner wall surface of the tube 20.
次に、第２図乃至第４図を参照して、第１図に
示した実施例に係る大動脈カニユーラを実際に使
用する場合を説明する。使用にあたり、先ず前記
カニユーラ本体１０の前記管路１３の基端部には
チユーブ６０の一端部を嵌挿するとともに、該チ
ユーブ６０の他端部を三方活栓６１に接続し、気
泡抜き回路６２及び動脈圧測定用ライン６３を形
成しておく。かくした上で術者が大動脈カニユー
ラ１の穿刺導入針３０を患者の大動脈２の高い位
置（術者の目に近い位置）に刺し、フランジ部１
４に穿設されたスロツト１４ｂを通した糸を大動
脈２に縫い付ける。 Next, with reference to FIGS. 2 to 4, the actual use of the aortic cannula according to the embodiment shown in FIG. 1 will be described. In use, first, one end of the tube 60 is inserted into the proximal end of the conduit 13 of the cannula main body 10, and the other end of the tube 60 is connected to the three-way stopcock 61, and the air bubble removal circuit 62 and A line 63 for measuring arterial pressure is formed in advance. After doing so, the operator inserts the puncture introduction needle 30 of the aortic cannula 1 into the patient's aorta 2 at a high position (close to the operator's eyes), and inserts the flange portion 1
The thread passed through the slot 14b drilled in the aorta 2 is sewn onto the aorta 2.
次に、コネクタ５０と摘み３１との係合を解
き、穿刺導入針３０をカニユーラ本体１０及びチ
ユーブ２０より序々に引抜き、穿刺導入針３０の
先端部３０を第３図示の状態まで引抜いたとき、
即ち、前記チユーブ２０の略中央部まで引抜いた
とき鉗子５５等で血液の流路を一旦止め、その後
穿刺導入針３０を完全に抜取る。そうした上で、
コネクタ５０を心筋保護液注入回路６４に接続す
れば大動脈２内に心筋保護液を注入することがで
きる。符号４は冠動脈口、５は大動脈弁、６は左
心室である。 Next, when the connector 50 and the knob 31 are disengaged, the puncture introduction needle 30 is gradually pulled out from the cannula main body 10 and the tube 20, and the distal end portion 30 of the puncture introduction needle 30 is pulled out to the state shown in the third figure.
That is, when the tube 20 is pulled out to approximately the center, the blood flow path is temporarily stopped using the forceps 55 or the like, and then the puncture introduction needle 30 is completely pulled out. After that,
By connecting the connector 50 to the cardioplegia fluid injection circuit 64, the cardioplegia fluid can be injected into the aorta 2. Reference numeral 4 is the coronary artery ostium, 5 is the aortic valve, and 6 is the left ventricle.
今、前記コネクタ５０に接続された心筋保護液
注入回路６４より心筋保護液等を大動脈２の基部
内へ注入し、前記三方活栓の切替えコツク６１ａ
を操作して前記管路１３と通気状態にあつた前記
回路６２とを接続させると、前記大動脈２内の気
泡３の吸引除去が図られる。この場合、先ず大動
脈２内の気泡３は、前記管路１３を通じ前記チユ
ーブ６０へ導かれる。特に前記フランジ部１４の
端面１４ａから管路１３の先端口までの距離Ｍ
（第１図示）は、大動脈２の血管壁の肉厚と等し
いか、あるいは若干長いため、第４図において上
方に上がつてきた気泡３を確実にチユーブ６０へ
導くことができる。更に前記回路６２を通じ、気
泡３の吸引が終了した時点で、前記三方活栓６１
の切替えコツク６１ａを操作して前記動脈圧測定
用ライン６３と前記管路１３とを接続し、前記回
路６２を閉鎖すれば、動脈圧の測定が可能とな
る。 Now, inject cardioplegia fluid or the like into the base of the aorta 2 from the cardioplegia fluid injection circuit 64 connected to the connector 50, and switch the three-way stopcock 61a.
When the conduit 13 and the vented circuit 62 are connected by operating the aorta 2, the air bubbles 3 in the aorta 2 are removed by suction. In this case, the air bubbles 3 within the aorta 2 are first guided to the tube 60 through the conduit 13. In particular, the distance M from the end surface 14a of the flange portion 14 to the tip end of the conduit 13
(shown in FIG. 1) is equal to or slightly longer than the wall thickness of the blood vessel wall of the aorta 2, so that the air bubbles 3 rising upward in FIG. 4 can be reliably guided to the tube 60. Furthermore, when suction of the bubbles 3 is completed through the circuit 62, the three-way stopcock 61 is closed.
By operating the switching knob 61a to connect the arterial pressure measuring line 63 and the conduit 13 and closing the circuit 62, it becomes possible to measure the arterial pressure.
従つて、心腔内の気泡抜きと心筋保護液の注入
を同時に行なうことができ、又気泡抜き終了後は
動脈圧の測定を行なうことも可能である。前記管
路１２の内径は管２mm程度であり、薬液を注入す
る際の圧損を最少限度にするために前記サイドホ
ール１５を設けたものであるが、前記フランジ部
の端面からサイドホール１５の口部までの距離Ｌ
は血管壁の肉厚と等しいか、あるいは若干長いだ
けであるため、管路１２を利用して、胸部外科手
術の最後の気泡抜きを行なうことが可能であり、
心腔内の気泡はサイドホールよりも確実かつ円滑
に抜くことができる。 Therefore, the air bubbles in the heart chamber can be removed and the cardioplegia fluid can be injected at the same time, and the arterial pressure can also be measured after the air bubbles have been removed. The inner diameter of the pipe line 12 is about 2 mm, and the side hole 15 is provided in order to minimize the pressure loss when injecting the chemical solution. Distance L to part
is equal to the thickness of the blood vessel wall, or is only slightly longer, so the conduit 12 can be used to remove air bubbles at the end of thoracic surgery.
Air bubbles in the heart chamber can be removed more reliably and smoothly than through the side hole.
以上本考案によれば、開心術の際、心腔内の気
泡抜き、心筋保護等の注入並びに動脈圧の測定を
可能にするとともに、使用中、他部所へ損傷を与
えることがない。 As described above, according to the present invention, during open heart surgery, it is possible to remove air bubbles from the heart chambers, perform injections for myocardial protection, and measure arterial pressure, and at the same time, it does not cause damage to other parts during use.
第１図は本考案に係る大動脈カニユーラの拡大
断面略図、第２図乃至第４図は使用状態を示す拡
大断面略図、第５図は第４図−断面略図、第
６図は穿刺導入針を抜取つた大動脈カニユーラを
カニユーラ本体の先端口側よりみた略図である。
１……大動脈カニユーラ、２……大動脈、４…
…冠動脈口、５……大動脈弁、６……左心室、１
０……カニユーラ本体、１１……隔壁、１２，１
３……管路、１４……フランジ部、１５……サイ
ドホール、２０……チユーブ、３０……穿刺導入
針、３１……摘み、４０……栓体、５０……コネ
クタ。
Fig. 1 is an enlarged schematic cross-sectional view of the aortic cannula according to the present invention, Figs. 2 to 4 are enlarged schematic cross-sectional views showing the state of use, Fig. 5 is a schematic cross-sectional view of Fig. 4, and Fig. 6 is a schematic cross-sectional view of the aortic cannula according to the present invention. FIG. 2 is a schematic diagram of the removed aortic cannula viewed from the distal orifice side of the cannula body. 1...Aortic cannula, 2...Aorta, 4...
... Coronary ostium, 5 ... Aortic valve, 6 ... Left ventricle, 1
0... Cannula body, 11... Bulkhead, 12, 1
3... Conduit, 14... Flange portion, 15... Side hole, 20... Tube, 30... Puncture introduction needle, 31... Knob, 40... Plug body, 50... Connector.
Claims (1)
ユーラ。 (a) 管体の長手方向に設けた隔壁により形成さ
れた２つの管路と、その端面が血管外壁に当
接するフランジ部と、前記フランジ部近傍に
穿設されたサイドホールとを備えて成るカニ
ユーラ本体。 (b) その一端部が前記カニユーラ本体の基端部
に挿着され、その他端部が開放されている可
撓性のチユーブ。 (c) その先端部が前記カニユーラ本体より突出
するように、前記カニユーラ本体及びチユー
ブに収納された穿刺導入針。 (d) 前記チユーブと前記穿刺導入針との間より
血液が流出するのを封止せしめるため、前記
穿刺導入針の外側壁に固設された栓体。 ２ 前記管路の一方が、他の管路より大径に形成
され、その大径な管路側に前記サイドホールが
穿設されている実用新案登録請求の範囲第１項
記載の大動脈カニユーラ。 ３ 前記フランジ部の端面から大径の前記管路側
に形成された前記サイドホールの口部までの距
離と、前記フランジ部の端面から他の前記管路
の先端口までの距離とが略等しく、かつ前記各
距離が血管壁の肉厚と等しいかあいは若干長い
実用新案登録請求の範囲第２項記載の大動脈カ
ニユーラ。 ４ 前記穿刺導入針が、大径な前記管路に挿通し
ている実用新案登録請求の範囲第２項記載の大
動脈カニユーラ。 ５ 前記チユーブが、大径な前記管路の基端部に
固着されている実用新案登録請求の範囲第１項
記載の大動脈カニユーラ。[Claims for Utility Model Registration] 1. An aortic cannula comprising the following elements (a) to (d). (a) Comprising two ducts formed by partition walls provided in the longitudinal direction of the tubular body, a flange portion whose end surface abuts against the outer wall of the blood vessel, and a side hole drilled near the flange portion. Canniula body. (b) A flexible tube whose one end is inserted into the proximal end of the cannula body and whose other end is open. (c) A puncture introduction needle housed in the cannula body and tube such that its tip protrudes beyond the cannula body. (d) A stopper fixed to the outer wall of the puncture introduction needle for sealing off blood from flowing out between the tube and the puncture introduction needle. 2. The aortic cannula according to claim 1, wherein one of the channels is formed to have a larger diameter than the other channel, and the side hole is bored on the side of the larger diameter channel. 3. The distance from the end face of the flange portion to the mouth of the side hole formed on the side of the large-diameter pipe line is approximately equal to the distance from the end face of the flange part to the tip end of the other pipe line, The aortic cannula according to claim 2, wherein each distance is equal to or slightly longer than the thickness of the blood vessel wall. 4. The aortic cannula according to claim 2, wherein the puncture introduction needle is inserted into the large-diameter conduit. 5. The aortic cannula according to claim 1, wherein the tube is fixed to the proximal end of the large-diameter conduit.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983017476U JPS59161808U (en) | 1983-02-10 | 1983-02-10 | aortic cannula |
| US06/482,090 US4493707A (en) | 1983-02-10 | 1983-04-04 | Tubage used for intubation |
| DE8484101013T DE3474904D1 (en) | 1983-02-10 | 1984-02-01 | Tubage used for intubation |
| EP84101013A EP0121667B1 (en) | 1983-02-10 | 1984-02-01 | Tubage used for intubation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983017476U JPS59161808U (en) | 1983-02-10 | 1983-02-10 | aortic cannula |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59161808U JPS59161808U (en) | 1984-10-30 |
| JPS623125Y2 true JPS623125Y2 (en) | 1987-01-24 |
Family
ID=11945055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983017476U Granted JPS59161808U (en) | 1983-02-10 | 1983-02-10 | aortic cannula |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4493707A (en) |
| EP (1) | EP0121667B1 (en) |
| JP (1) | JPS59161808U (en) |
| DE (1) | DE3474904D1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834707A (en) * | 1987-09-16 | 1989-05-30 | Evans Phillip H | Venting apparatus and method for cardiovascular pumping application |
| JPH0636831Y2 (en) * | 1990-06-30 | 1994-09-28 | 政徳 鶴岡 | Liquid filling device for enema fluoroscopy |
| US6224619B1 (en) * | 1991-12-17 | 2001-05-01 | Heartport, Inc. | Blood vessel occlusion trocar having size and shape varying insertion body |
| US5540675A (en) * | 1992-09-15 | 1996-07-30 | Hasson; Harrith M. | Support for surgical instrument |
| US5658272A (en) * | 1992-09-15 | 1997-08-19 | Hasson; Harrith M. | Surgical instrument support and method of using the same |
| US5328480A (en) * | 1992-10-09 | 1994-07-12 | Cook Incorporated | Vascular wire guiode introducer and method of use |
| US5800384A (en) * | 1993-10-08 | 1998-09-01 | Medical Parameters, Inc. | Multi-lumen percutaneous introducer |
| US5569290A (en) * | 1995-01-30 | 1996-10-29 | Paul C. McAfee | Method of and apparatus for laparoscopic or endoscopic spinal surgery using an unsealed anteriorly inserted transparent trochar |
| US5704914A (en) * | 1996-02-23 | 1998-01-06 | Stocking; John E. | Catheter placement assembly |
| WO2005051206A1 (en) | 2003-11-21 | 2005-06-09 | Vnus Medical Technologies, Inc. | Method and apparatus for treating a carotid artery |
| US8858490B2 (en) | 2007-07-18 | 2014-10-14 | Silk Road Medical, Inc. | Systems and methods for treating a carotid artery |
| EP2497520B1 (en) * | 2007-07-18 | 2022-04-13 | Silk Road Medical, Inc. | Systems for establishing retrograde carotid arterial blood flow |
| US9011467B2 (en) | 2008-08-13 | 2015-04-21 | Silk Road Medical, Inc. | Suture delivery device |
| JP2009142492A (en) * | 2007-12-14 | 2009-07-02 | Jms Co Ltd | Indwelling needle device |
| EP3789069B1 (en) | 2008-02-05 | 2024-04-03 | Silk Road Medical, Inc. | Systems for establishing retrograde carotid arterial blood flow |
| US8574245B2 (en) | 2008-08-13 | 2013-11-05 | Silk Road Medical, Inc. | Suture delivery device |
| US20110040241A1 (en) * | 2009-08-11 | 2011-02-17 | Dongfang Wang | Blood access assembly for artificial lung and right ventricular assist device |
| US9623228B2 (en) | 2010-08-12 | 2017-04-18 | Silk Road Medical, Inc. | Systems and methods for treating a carotid artery |
| US10159479B2 (en) | 2012-08-09 | 2018-12-25 | Silk Road Medical, Inc. | Suture delivery device |
| US10182801B2 (en) | 2014-05-16 | 2019-01-22 | Silk Road Medical, Inc. | Vessel access and closure assist system and method |
| US10238853B2 (en) | 2015-04-10 | 2019-03-26 | Silk Road Medical, Inc. | Methods and systems for establishing retrograde carotid arterial blood flow |
| JP6881744B2 (en) * | 2017-04-04 | 2021-06-02 | 国立大学法人高知大学 | Air vent device for body cavity |
| WO2019089385A1 (en) | 2017-11-02 | 2019-05-09 | Silk Road Medical, Inc. | Fenestrated sheath for embolic protection during transcarotid carotid artery revascularization |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3714945A (en) * | 1970-12-17 | 1973-02-06 | Vicra Sterile Inc | Digit manipulable quick release cannula insertion device |
| US3776239A (en) * | 1972-05-17 | 1973-12-04 | Sherwood Medical Ind Inc | Aspirator needle |
| US4096860A (en) * | 1975-10-08 | 1978-06-27 | Mclaughlin William F | Dual flow encatheter |
| US4134402A (en) * | 1976-02-11 | 1979-01-16 | Mahurkar Sakharam D | Double lumen hemodialysis catheter |
| DE2703087C2 (en) * | 1977-01-26 | 1984-11-29 | Günter van Dr.med. 4000 Düsseldorf Endert | Double lumen catheter |
| JPS5740997Y2 (en) * | 1977-06-03 | 1982-09-08 | ||
| DE3010841A1 (en) * | 1980-03-21 | 1981-10-08 | Ulrich Dr.med. 6936 Haag Uthmann | CATHEDER |
-
1983
- 1983-02-10 JP JP1983017476U patent/JPS59161808U/en active Granted
- 1983-04-04 US US06/482,090 patent/US4493707A/en not_active Expired - Lifetime
-
1984
- 1984-02-01 EP EP84101013A patent/EP0121667B1/en not_active Expired
- 1984-02-01 DE DE8484101013T patent/DE3474904D1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59161808U (en) | 1984-10-30 |
| DE3474904D1 (en) | 1988-12-08 |
| DE3474904T (en) | 1988-12-08 |
| EP0121667A3 (en) | 1985-12-27 |
| EP0121667B1 (en) | 1988-11-02 |
| US4493707A (en) | 1985-01-15 |
| EP0121667A2 (en) | 1984-10-17 |
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